1.5. RFC
This document generically describes the procedures for generating the 10-position Federal Taxpayer Registry (RFC) key, taking as a legal basis the "instruction for the formation of the Federal Taxpayer Registry" issued by the General Directorate of Collection in April 1988.
It also describes how the differentiating (homonymous) key is generated as well as the verification digit, obtaining with these two elements the 13-position federal taxpayer registration key, which is made known to taxpayers subject to federal taxes for their use before the Ministry of Finance and Public Credit.
Documents to obtain the data
- Legal entity: â Copy of the articles of incorporation or, if applicable, a copy of the document that gave rise to its creation.
- Individual: â Birth certificate, birth card, passport or certificate of studies from public education.
In the case of salaried individuals, it will be formed with the data provided by the employer (withholding agent).
Key structure
Regarding its top positions, the Federal Taxpayer Registry key:
- Legal entity: It consists of three letters and six digits.
- Individual: It consists of four letters and six digits.
Once the key with its first positions has been assigned, the tax authority will generate 2 positions for the homonymy differentiating key and one position for the check digit.
The complete Federal Taxpayer Registry key consists of 12 positions for legal entities and 13 for individuals.
Specific rules
This chapter is based on a document provided by the website: INFOMEX in response to a request for the RFC generation algorithm, Request details number: 0610100135506
